Cultivator



(No Model.)

I'IG.1.

WITNESSES Patented Mar. 28, I899. J. MCL. WRIGHT. CULTIVATDR.

fiApplicatiou filed Mar. 24, 1898.

2 Sheets-Sheet I.

A TTOHNEY THE News PETER no, warmumon WASHINGTON, o. c.

No. 622,096. 7 Patented Mar. 28, I899. J. McL. WRIGHT.

CULTIVATOR.

(Application filed Mar. 24, 1898.) (No Model.) 2 Sheets-8heet 2.

W/TNESSES: 09

llNrrEn STATES PATENT OFFICE.

JOHN MOL. \VRIGHT, OF OBERLIN, KANSAS.

CU LTIVATO R.

SPECIFICATION forming part of Letters Patent No. 622,096, dated March28, 1899.

To all whom it ntay concern:

Be it known that 1, JOHN MOL. WVRIGHT, of Oberlin, in the county ofDecatur and State of Kansas,have invented a new and Improved Cultivator,of which the following is a full, clear, and exact description.

The object of my invention is to so construct the cultivator that theweight of the driver will act to normally hold the shares out of contactwith the ground and whereby the operator while seated in a saddleforming a portion of the machine may operate one or two beams carryingshares without difficulty and in a most convenient manner.

Another object of the invention is to pro vide a simple means wherebythe plows of the cultivator may be regulated as to the depth they shalltravel in the soil.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a vertical section through one of the axles of the machine,taken close to one of the wheels and illustrating the operative portionsof the machine in side elevation. Fig. 2 is a vertical section throughthe tongue, taken in front of the regulating-yoke; and Fig. 3 is a planview of the machine.

The pole A is comprised of two diverging members 11, and the said poleis attached to the central portion of the body of a crankaxle B, thespindles of which axle carry supporting wheels 10. The body portion ofthe axle is provided with a rack 13, and a lever 14 is pivoted at theforward portion of the tongue on a bolt 12, which extends horizontallythrough the tongue, as is best shown in Fig. 3. The lever 14 is carriedrearward a predetermined distance in a straight line and is then bentlaterally, and preferably the rear portion of the lever is somewhatcurved, the lever being adapted at its rear end for engagement with therack 13. An adjustingyoke O spans the tongue or pole A at the rear ofthe pivot pin or bolt 12, and the said adjusting-yoke G is provided withhorizontal Application filed March !24, 1898. Serial No. 674,968. N0model-3 spindle-sections 15, which extend in opposite directions fromthe members of the yoke, as is best illustrated in Fig. 2.

- The members of the ad justing-yoke are made to pass through guide-eyes16, attached to the pole, as is also shown in Fig. 2, and at the centralportion of the bow-section of the yoke O a downwardly-extending flange17 is pivoted, through which flange the lever 14 is passed, as islikewise illustrated in Fig. 2.

carry a plowshare 22 of any desired construction. The shanks of theplowshares are usually arranged at each side of the beam.

The depth to which the plowshares shall enter the ground is regulatedthrough the medium of the lever 14, which lever when elevated carriesthe adjusting-yoke O upward, consequently carrying in an upwarddirection the pivot ends of the beams, and when the lever 14 is carrieddownward the beams are dropped, and the beams may be held in theiradjusted position by the engagement of the lever 14 with the rack 13.

A bar 23 is adjustably pivoted at or near its center between ears 24,which usually extend rearwardly and upwardly from the rear portion ofthe body of the axle B at or near the center. The bar 23 is arched atits rear end and is provided with a foot-section at the rear and with ahook 25 or its equivalent'at the front, the said hook 25 being adaptedto pivotally engage with the central portion of a cross-bar 26, from theends of which crossbar links 27 are carried downward, terminating inhooks 28 at their lower extremities, the said hooks being adj ustablyconnected with plates 29 or their equivalents attached to the forwardportion of the beams 20, as illustrated in Figs. 1 and 2. A saddle 30 isattached to the foot of the arched bar 23, and from each side of thesaddle a plate or a shield 31 is carried downwardly, having at itsforward edge an outwardly-extending flange, so as to protect the legs ofthe driver seated in the saddle from contact with wet stalks or withdamp plants that are being cultivated.

A stirrup is attached to each pendent portion 31 of the saddle, and theoperator when standing in said stirrups will stand as firmly as on theground and may manipulate the handles 34, attached to the beams, andguide the said beams laterally or vertically, as occasion may demand,the rear arching of the bar 23 permitting the handles of the beam -\L5 tbe carried under said bar.

\Vhen the operator does not exert downward pressure upon the handles 3%of the beams, the weight of the rider in the saddle will be sufficientto raise the forward end of the arched bar, and thus carry theplow-beams upward, so that the shares will be removed from contact withthe ground. Under such an arrangement the operator may drive to or fromthe field or to any point on the field without bringing the plows toworking en gagement with the ground; but the moment such an engagementis desired by standing in the stirrups and pressing downward on thehandles 3% the shares may be buried in the and a locking device for thelever, for the purpose set forth.

2. In a cultivator, the combination with a frame, a Vertically-extendingyoke having horizontal transverse pivots at its extremities and guidesupon the frame engaging the body of the yoke, of a lever pivoted to theframe and the yoke, and a toothed bar upon the frame adapted to engageand hold the lever.

3. In a cultivator, the combination of a frame, plow-beams having apivotal connection of their forward ends with the frame, saidconnections being movable up or down with a lever pivoted upon the frameand carrying a seat at its rear end and connections from the front endof the lever to the plowbeams.

4. In a cultivator, the combination of a frame, and plow-beams havingvertically-adjustable pivots carried by the frame, and handles upon thebeams, with a lever pivoted upon the frame and carrying a seat at itsrear end Where the rider may engage the handles, and connections fromthe front end of the lever to the plow-beam.

5. In a cultivator, the combination of a frame, a yoke held in guidesthereon to move vertically, a lever connected to the yoke, and a lockingdevice for the lever with plows having their beams pivoted upon theyokes, ,a lever pivoted upon the frame and carrying a seat upon its rearend where the rider may engage the plow-handles, a cross-bar centrallypivoted upon the forward end of the seat-lever, and links connecting theends of the cross-bar with the beams back of their pivots.

J OllN MCL. 'WRIGIIT.

\Vitnesses:

O. E. RoUsH, U. B. MoGEE.

